For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

2

HMC987LP5E

v03.1112

LOW NOISE 1:9 FANOUT BUFFER

DC - 8 GHz

Table 1. Electrical Speciications

unless otherwise speciied: t = 27 °C, regulated VDD of 3.3 V, 2 GHz, 6 dbm in, AC coupled single ended input and

references are acceptable.

Parameter

Conditions

Min.

typ.

Max.

units

DC input Characteristics

VDD (VCCHF=VCCA=VCCb=VCCrF)

3.0

3.3

3.6

V

input Common Mode Voltage

1.35

2

VDD - 0.2

V

input swing (single Ended)

0.2

2

Vpp

input Capacitance

0.5

pF

input impedance

single-Ended

selectable

50 / 150

Ω

Differential

selectable

100 / 300

Ω

input bias Current

base current under external

DC bias, internal termination

open.

165

µA

logic inputs

switching threshold (Vsw)

ViH/Vil within 50 mV of Vsw

38

47

54

%VDD

lVPECl DC output Characteristics

output Voltage High level

@ 3.3 V = 2.25

VDD - 1.2

VDD - 1.0

VDD - 0.8

V

ouput Voltage Common Mode

@ 3.3 V = 1.82

VDD - 1.7

VDD - 1.5

VDD - 1.3

V

output Voltage low level

@ 3.3 V = 1.42

VDD - 2.1

VDD - 1.9

VDD - 1.7

V

output Voltage, single-Ended

800

mVpp

AC Performance

input/output Frequency [1]

> 400 Vpp single-ended

DC

8000

MHz

3 db bandwidth

4000

MHz

output rise/Fall time

20% to 80%

65

ps

typical Channel skew

Across all lVPECl outputs

relative to channel 1

0

1.5

3.1

ps

small signal Gain s21

1000 MHz

26

db

4000 MHz

15

db

input P1db

1000 MHz

-20

dbm

4000 MHz

-10

dbm

saturated Power in fundamental tone (single-Ended)

1000 MHz

2.5

dbm

4000 MHz

-0.5

dbm

output Voltage swing (Vppd into 100 Ω)

700 MHz

1.5

1.6

1.7

V

2000 MHz

1.2

1.3

1.4

V

[1] For frequencies < 700 MHz, square wave signals should be used to maintain high quality phase noise performance.

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